Dieing-machine.



J. H. REED.

DIEING MACHINE.

, APPLICATION FILED MAY 27, 1908.

COL uuuuuuu ANOGRAPH $0.. WASHINGTON. D c.

Patented Mar. 31, 1914.

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J. H. REED.

DIEING MACHINE.

APPLIOATION'IILED MAY 27, 190B.

Patented Mar. 31, 1914.

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COLUMBIA PLANOGRAPH co.. WASHINGTON, D. c,

J. H. REED.

DIEING MACHINE. APPLICATION FILED MAY 27, 1908.

1,091,797.. Patented Mar. 31, 1914.

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iii-NET TATES PATENT FFIO JAMES H. REED, 0F SWAMPSCOTT, MASSACHUSETTS,ASSIG-NOR TO ESSEX MACHINE COMPANY, OF LYNN, MASSACHUSETTS, ACORPORATION OF MAINE.

DIEING-MACHINE.

To all whom it may concern Be it known that I, JAMEs H. REED, of

Swampscott, in the county of Essex and vide a machine which is capableof cheaply,

efficiently and expeditiously dieing out shoe uppers and parts thereof.

I have discovered that it is possible to out blanks from a sheet ofleather with a die having a dull edge when a hard supporting surface isemployed for the reception of the work, and to leave a sharp clean cutedge on the blank, if such die be given a sharp or hammer-like blow;whereas if a slow pressure is exerted against the die, a ragged orimperfectly formed edge is left on the blank. According to my inventiontherefore, I employ a work support or table having a hard unyieldingface, such for instance as a steel plate, a die having a dull edge, andmeans for imparting a sharp or hammer-like blow to the die. By formingthe die with a dull edge, that is with an edge say 1/64 (more or less)of an inch in thickness, it is not injured when used in conjunction witha hard work support, and moreover the die may be formed with two suchedges so that it is reversible for dieing out the corresponding blanksof right and left shoes, since the upper or unused edge will not sufferby reason of the contact or impingement therewith or thereupon of the haminer.

In the illustrated embodiment of the invention, I employ a hammer havinga hard face for engagement with the upper edge of the die, and providespring mechanism for actuatin the hammer to cause it to impart a sharpblow to the die. The hammer is raised automatically so as to store uppower in the spring, and it is locked in its raised position ready to bereleased by suitable releasing mechanism under the control of theoperator. The work support has an exposed area suflicient to receive anentire kin, so that the die may be moved manually from place to place tocut out such parts of the skin as may be adapted for use Specificationof Letters Patent.

Application filed May 27, 1908.

Patented Mar. 31, 1914:.

Serial No. 435,260.

in any particular portion of a shoe. The hammer is likewise manuallymovable laterally over the work support, so as to be caused to registerwith the die, and it may be mounted upon a head which is adapted toswing about an upright axis, and to be moved transversely thereof. Inaddition to these features, the illustrated embodiment of the inventionis equipped with means by which the hammer automatically adjusts itselfso as to distribute the blow equally to all parts of the die.

Referring to the drawings, Figure 1 represents a side elevation of themachine containing the invention. Fig. 2 represents a longitudinallyvertical section through the upper portion of the machine. Fig. 3represents a front elevation of the machine. Fig. 4 represents a frontelevation of the cam for raising the hammer. Fig. 5 represents a sectionon the line 5-5 of Fig. 4:, looking in the direction of the arrow at.Fig. 6 represents a similar section looking in the opposite direction.Fig. 7 shows in perspective view, the locking member which is carried bythe cam. Fig. 8 represents a section through the die.

Referring to said drawings, 10 indicates the work support which consistsof a hard steel plate having a smooth upper surface.

This work support rests upon a standard 11 having a suitable base 12.Inclosing the work support 10 is a rectangular wooden frame 13 securedby brackets 14.- to the standard 11. The work support has an exposedarea sufficient to receive an entire skin or other material from whichit is desirable to cut the blanks. Extending laterally and upwardly fromthe standard 11 is a bracketlike arm 15 which is hollow as shown. Thisarm supports the head which carries the hammer as will be explained. Theupper portion of the arm 15 is cylindrical as indicated at 16 to form abearing for a sleeve 17. Between the lower end of said sleeve and ashoulder or flange 18 on the arm, I interpose a suitable antifrictionend thrust bearing as indicated at 19. The sleeve is provided with twoalined lateral extensions 20 20 through which are passed pins or shafts21 having secured thereto or journaled thereon, rollers 22. Resting uponsaid rollers is a slide 23. This slide projects over the work supportand may be moved longitudinally relatively to the sleeve 17. It isformed with side walls, the lower edges of which rest upon the rolls 22.The side walls are provided with exterior inclined guide surfaces 24against which bear rolls 25 journaled on pins 26 secured to theextensions 20 20 of the sleeve as best shown in Figs. 1 and 3. Theprovision of the rollers 22 and 25 enables the slide to be movedlongitudinally with comparative ease, and yet to be held firmly againstlost motion.

The slide and the sleeve constitute a head for supporting the hammer andpermitting its'movement laterally to any desired place over the worksupport. At its rear end, the slide has an end wall 27 with a projection28 which constitutes a stop to limit the forward movement of the slide.The end of the slide is enlarged to form a guideway for the hammer whichis mounted to reciprocate therein. The hammer itself comprises abar 29arranged in a guideway 30 in the end 31 of the slide, said bar having atits lower end a flaring enlargement 32. The under face of the flaringend of the stem or bar 29 is flat except for a semispherieal socket 33.On the upper end of the stem or bar 29 is a plate 34 against which bearsa spring tension member which, in the present instance, consists of twosprings 35 each having one end affixed to a disk 36 aflixed upon a pin37 mounted in arms 38 projecting upwardly from the slide as shown inFigs. 2 and 3. The spring member, when power is stored therein byraising the bar or stem 29, is sufficiently powerful to drive the hammerdown, upon its being released, as will be explained, and imparts a sharpblow to a die located therebeneath. Any suitable mechanism may beutilized for raising the hammer and for latching and releasing it.

The latching mechanism in the illustrated embodiment of the invention,consists of a latch 39 fulcrumed on a stud 40 arranged in ears on thefront end of the slide, and in front of the bar or stem 29. The end ofthe latch is adapted to project under the beveled edge of the plate 34as shown in Fig. 2, so as to hold the bar 29 against downward movement,and thereby resist the pressure of the spring-actuating-mechanism Theend of the latch is beveled as at 41, and the plate 34 is beveled as at42, so that, when the hammer rises, the latch will be forced outward bythe engagement of the two beveled surfaces 41, 42, after which it iscaused to spring back under the plate 34 by a spring 43 which bearsagainst an arm 44 on the latch. The movement of the latch under tensionof the spring 43 is limited by a stop pin 45.

The mechanism for raising the hammer is power driven. To this end may beemployed a prime power shaft 46 mounted in bearings This power shaft hasthe on the arm 15. usual fast and loos-e pulleys, and is adapted to becontinuously driven.

Arranged in bearings in the arm 15, is an upright shaft 47 geared to theshaft 46 by bevel gears 48 49. Journaled in the end walls of the slideis a shaft 50, having a longitudinal groove to receive a key or feather51 on a bevel car 52 which is journaled in a bearing 53 p aced on thetop of the sleeve 20, so as to extend into the interior of the slide.The bevel gear 52 is driven by a bevel gear 54 on the upper end of theshaft 47. By reason of this construction, the shaft 50 will be drivenfrom the prime power shaft 46 irrespective of the rotative orlongitudinal movement of the slide 23,

the shaft 47 being arranged with its axis coincident with the axis ofrotation of the sleeve 1.7. On the front end of the shaft 50 there is acam disk 55 on the inner. face of which is a spiral cam 56 forming aspiral groove 57 with a large mouth 58 opening at the periphery of thedisk, and an inner end 59 located in alinement with the axis of theshaft 50. The bar 29 has a transverse aperture 60 to receive a slide pin61 having journaled on its inner end a roll 62' to move and lift thehammer back to its initial position as shown in Fig. 2. In order thatthe roll 62 may be caused to remain at the end of the cam slot, I employa spring look as indicated at 63 in Fig. 7. The lock has a shank 64which lies in a slot in the cam disk and is pivoted upon a pin 65. Atthe end of the shank there is an offset head 66 which projects into thecam groove as shown in Figs. 5 and 6. The end of the head is concave, asindicated at 67, so that it forms a movable wall of the socket at theend of the cam groove as illustrated in Fig. 4. The lock is pressedyieldingly in position by a curved leaf spring 67 and its head isbeveled as at 68, so that, when the roll is engaged therewith as itmoves toward its socket, the lock will be pressed outwardly until theroll reaches the socket, immediately upon which, the spring will returnthe lock to its locking position. The lock and the inner end of thehelical cam thus form a substantially closed socket concentric with theaxis of rotation of the disk and it will be ap by the hammer bar,reaches this socket, the

disk will continue to rotate freely without gffecting further movementof the hammer I provide a handle for operating both the pin 61 and thelatch 39, and preferably their actuation is sequential, as I find itdesirable to disengage the pin and its roll from the cam before thehammer bar is released by the latch 39. The handle is indicated at 69,and it consists of a lever which is pivoted upon a pin inserted in thefront end of the slide 23. The lever is slotted as at 71 through whichis passed a pin 72. When the lever 69 is moved upwardly far'enough, thispin engages the curved end of the arm 44 and forces the latch rearwardlyfrom the plate 84- so as to release the hammer. The upward movement ofthe lever is limited by a lug or ear 73 on the arm 4 1. The connectionbetween the handle or lever 69 and the pin 61 comprises a leverfulcrumed on a pin 7% and having two arms 75 76. The arm 7 5 projectsdownwardly between two cars 7 7 on the front end of the pin 61, andbetween the end of the pin and a cross pin 7 8 passed through said earsas illustrated in Fig. 2. The arm 76 has in one edge an open cam slotwhich receives the pin 72, on the handle or lever 69. The parts are soarranged that, when the handle is moved up wardly from the positionshown in Fig. 2, it will first move the two armed lever 75 76 towithdraw the roll 62 and the pin 61 out of its socket at the end of thecam groove 57. The continued movement of said lever 69 effects thewithdrawal of the latch 37 in engagement with the hammer so that thehammer is immediately driven downward with considerable force by itsspring-actuating mechanism. If the lever 69 be permitted to remain inthis position by the opera tor, the hammer will remain down, but uponhis moving the handle down again, the latch will be first released sothat it may be sprung into engagement with the hammer at the propertime, and the pin 61 will be moved inwardly so that the roll thereonwill. be caused to enter the cam slot in the cam disk with the resultstated to be consequent thereupon.

In order to cushion the hammer in case it should be forced downwardlyand the die should not be in position to receive the blow, I employ ablock of rubber or other suitable material, as indicated at 79, thisbeing placed immediately beneath the plate 34 on the upper end of thehammer bar. This cushion 7 9 also has the effect of raising the hammerout of contact with the die after the blow has been struck, and preventsthe hammer rebounding and striking a second blow, which is undesirablebecause, as is found in practice, if this occurs the stock will bemarred owing to the fact that the die rebounds slightly after the firstblow, and the second blow causes the die to mark the stock withoutcutting it.

I have stated that the lower end of the hammer bar is provided with asemispherical socket as indicated at 33. This is in order that thehammer head may be universally adjustable. The hammer head is indicatedat 80, and it is provided with a semispherical member 81 complemental tothe.

socket to form a ball and socket joint. At the edges of the flaring endof the hammer bar, are numerous apertures 82 through which loosely passbolts 83 which are screwed into the head 80. Springs Sat encircle theupstanding ends of the bolts and bear against the heads of the bolts andagainst the upper surface of the flaring end of the hammer bar. Thesesprings maintain the engagement of the members of the ball and socketjoint, and at the same time permit the head to adjust itself so as toequal ize the blow imparted to the die. The under surface of the hammerhead is flat and the head itself is preferably formed of hard steel.

In Figs. 2 and 8 I have shown a die having what I term a dull edgealthough the showing is naturally more or less conven tional. The die isshaped to die out from the leather, a blank of the proper conformation,and it is made of steel with its upper and lower ends beveled so as toproduce an edge which is not a sharp cutting edge but one which is say,for example. 1/64: more or less) of an inch in thickness. lVith such adie it is, as I previously stated, possible by striking the upper edgewith a hammer blow, to cause the lower edge to cut out of the piece ofleather or a sheet of any suitable fabric such as paper, cloth or thelike, a blank having a sharp and clean cut edge. Since the edges of thedie are dull there is no injury by the repeated blows of the hammer.

In operation, av skin or sheet of fabric is placed upon the work support10 and the die is manually placed upon such part thereof, as may bedesired to remove the blank. The hammer is then manually. by means of ahandle 93 which is attached to the front end of the slide, broughtdirectly over the die. The handle or lever 69 is then raised to releasethehammer whereupon it is forced downwardly with considerable force, andas the head of the hammer engages the die. it immediately adjusts itselfso as to equalize or distribute the blow over the entire die, The handlelever is then moved downwardly whereupon the hammer is raised andlatched in its raised position. The operator may then, if he desires todie out a blank to fit the corresponding shoe of a pair, turn the dieover and locate it on another part of the fabric. The hammer is meritself is movable relatively to the slide. -The shock of the blow isabsorbed by the die, the work, and the work support, and is not borne bythe slide.

An examination of Fig. 2 of the drawings will show that the metalcontained in the hammer is disposed substantially symmetrically aboutthe vertical axis of the shaft 29 so that the weight of the said metalis disposed most effectively to enable a hard blow to be given by arelatively light hammer.

The machine possesses numerous advantages which will be apparent tothose familiar with the art, and to which it is unnecessary to refer indetail. It may be used for dieing blanks out of textile fabrics, paperor other material, and so far as certain features of the invention areconcerned, it will be understood that it is not necessary to use adouble edged die in cutting such materials.

Having thus explained the nature of my said invention and described away of constructing and using the same, although without attempting toset forth all of the forms in which it may be made or all of the modesof its use, I declare that what I claim is 1. In a machine of thecharacter described, a die having a dull cutting edge, a work supporthaving a hard unyielding surface, a hammer having an unyielding face andmechanism for causing said hammer to impart a hammer blow to the upperedge of the die.

2. In a machine of the character described, a work support having a hardunyielding surface, a hammer adapted to impart a hammer blow to the die,and having a hard unyielding face, mechanism for operating said hammer,and a die having at its ends dull cutting edges substantially as setforth.

3. In. a machine of the character described, a work support, a hammer,and a head therefor constructed and arranged to permit said hammer to bemoved in every direction in a plane parallel to the work supportlongitudinally and laterally of the surface of the work support.

4. In a machine of the character described, a work support, a hammer anda head therefor constructed and arranged to permit said hammer to bemoved laterally in every di- There is pracrection over-the surface ofthe Work support, said head comprising a rotatable member and ahammer-carrying slide supported thereby.

5. In a machine of the character described, the combination with a flatwork support, of a hammer adapted to reciprocate perpendicularly to theface of said support, means for raising the hammer, spring-actuatingmechanism for depressing said hammer to impart a hammer blow toa die,and a head for supporting said hammer and adapted to permit said hammerto be moved laterally over said work support.

6. In a machine of the character described,

the combination with a flat work support, of a hammer adapted toreciprocate perpendicularly to the face of said support, springactuatingmechanism for depressing said hammer, power mechanism for raising saidhammer, latching mechanism for holding the hammer raised, and a headsupporting said hammer and adapted to permit said hammer to be movedlaterally over said work support.

7. In a machine of the character described, a work support, a. standardhaving an upright bearing, a head comprising a member rotatable on saidbearing and a slide supported on said member,a die-operating devicesupported to move longitudinally on said slide, and manually-controlledmechanism on said slide for reciprocating said dieoperating device.

8. In a machine of the character described, a work support, a hammersupport movable laterally in every direction over-saidwork support, ahammer, spring mechanism on said hammer support for depressing saidhammer, and power-driven mechanism on said hammer support and movablelaterally therewith for raising said head.

9. In a machine of the character described, a work support, a standardhaving an upright bearing, a head comprising a member rotatable on saidbearing and a slide supported on said member, a driven shaft on saidslide, a driving shaft in the bearing, gearing connecting said shafts, adie-operating device on said head, and means operated by said drivenshaft for imparting movement to said die-operating device.

10. The combination with a bar, of a roing in a socket in the axis ofrotation of said cam, a spring-tensioned lock forming a movableretaining wall of said socket, and means on said member adapted totravel in said groove and rest in said socket substantially as setforth.

12. In a machine of the character described, a rectilineally movablehammer, a guideway therefor, a continuously rotating cam member formoving said hammer in one direction, means for moving said hammer in theother direction, and means under control of the operator for engagingsaid hammer with and disengaging it from said cam member, substantiallyas set forth.

13. In a machine of the character described, a hammer, a face cam havingan open-mouth spiral groove terminating in the axis of rotation of saidcam, a member on said hammer adapted to travel said groove to cause saidhammer to be raised, means for depressing said hammer, a latch forholding said hammer raised, and means for withdrawing said member fromsaid cam groove and said latch from the hammer.

14. A machine of the class described, having, in combination, a cuttingblock, a knife or die freely movable over said block, an arm arranged toswing over said block but constrained from vertical movement relative tosaid block, a hammer or platen carried by said arm and means foreffecting vertical reciprocation of said hammer to force said diethrough stock supported on said block.

15. A machine of the class described, having, in combination, a cuttingblock, a vertically movable hammer or platen, a laterally movablesupport by which said hammer or platen is carried into difierentoperative relations to said block while maintaining the operative faceof said hammer or platen in one plane, said support being constrainedfrom vertical movement and means for operating said hammer.

16. A machine of the class described, having, in combination, a cuttingblock, a vertically movable hammer or platen, a support for said hammeror platen arranged to swing about an axis at one side of the block, saidsupport being constrained from vertical movement relative to said block,and said hammer or platen being arranged for radial movement withrespect to the axis about which said support turns.

17. A machine of the class described, having, in combination a cuttingblock, a knife or die freely movable over the block, a light verticallymovable hammer or platen, a rigid support for said hammer or platen,arran ed to swing about an axis at one side of the block, said supportbeing constrained from vertical movement relative to said block andmeans for causing said hammer to deliver a quick, sharp blow to theknife or die, the counter-thrust from said means be ing received by saidrigid support.

18. A machine of the class described, hav ing, in combination, a cuttingblock, a knife or die freely movable over said block, a light verticallymovable hammer or platen, a rigid support for said hammer or platenarranged to swing about an axis at one side of the block, said supportbeing constrained from vertical movement relative to the block, meansfor maintaining said hammer or platen yieldingly in its uppermostposition, and means for depressing said hammer or platen to force theknife or die through stock supported on the block, the reaction fromsaid depressingoperation being taken up by said rigid support.

19. A machine of the class described, having, in combination, a cuttingblock, a vertically movable hammer or platen, a support for said hammeror platen laterally movable over the block but constrained from verticalmovement relative thereto, a carrier for said hammer movable over saidsupport and means for controlling the operation of said hammer mountedupon said carrier.

20. A machine of the class described, having, in combination, a cuttingblock, a post arranged at one side of said block, an arm arranged toswing on said post oversaid block, said post and arm being constrainedfrom vertical movement, a vertically reciprocating hammer, a carrier forsaid hammer mounted upon said arm for radial movement with respect tosaid post, means for operating said hammer and means for controlling theoperation of said hammer mounted upon said carrier.

21. A machine of the class described, having, in combination, a cuttingblock, a hammer or platen having a striking surface the dimensions ofwhich are less than the corresponding dimensions of said block movableover the block into operative position above a cutting knife or diewherever located on the block and movabletoward and away from the blockto force the knife or die through stock supported on the block, meansfor effecting the movement of the hammer or platen toward and away fromthe block and a support for the hammer or platen constrained fromvertical movement therewith.

22. In a machine of the character described, a die having a dull cuttingedge, a work-support having a hard unyielding surface, a hammer havingan unyielding face, mechanism for causing the said hammer to impart ahammer blow to the upper edge of the die, and a cushion engaging aportion of the hammer and holding it out of contact with the die whenthe parts are at rest.

23. In a machine ofthe character described, a die having a dull cuttingedge, a Work-support having a hard unyielding surface, a hammer havingan unyielding face, In testimony whereof I have affix'ecl my andmechanism forlcausingl said hammer to signature, in presence of twoWitnesses.

im art a hammer bow to tie (lie, t e metal of Which said hammer iscomposed being JAMES REED aclisposed symmetrically about the centralWitnesses:

line of movement of the center of the HENRY R. HURLEY,

hammer. HENRY W. ELDRIDGE.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

- Washington, D. G.

